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Dose anybody know the purpose of doing this
void Send_CmdNo(unsigned char command){ CSX=0; RDX=1; D_CX=0; DBUS=command; WRX=0; WRX=0; WRX=0; WRX=1; CSX=1; }
why use WRX=0 3 times b4 WRX=1? wouldn't that just give you WRX=1?
by the way WRX is just
sbit WRX = P7^2;
does it mean on the I/O pin the output will send out 0 three times and 1 one time? It performs that fast?
As part of the design phase, we attempt to predict as many eventualities as possible; thus reducing the chances of having the open windows for timing problems in the first place. Elementary my dear Watson. Any reasonable design will be done that way.
a) but the problem is that when all facts are not 100% available, assumtions must be made. b) when stated facts are not correct. c) when stated facts are ignored.
I have had experiences where the units I work with work well with brands a, b and c and when someone buy brand d it does not work. The difference between a, b, c and d is which part of the spec they ignore.
I would dearly love to be able to state "my products will not operate with equipment that does not follow the standards" but that is a pipe dream.
Erik